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12-08-2018, 07:03 PM | #1 |
Registered User
Join Date: Dec 2014
Location: Northern California
Posts: 422
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Disc TO Drum Conversion Help
The title sums it up! It looks like I will likely be converting BACK to rear drums on my truck, specifically so I can have a functioning parking brake if/when I take out my Spicer 5831 (where the current brake is mounted).
So I am gathering parts, and have hit a little bit of a road block. I would like to mount slip on drums instead of mounting them behind the hubs. Is there any way to do it without changing axle housings? I have searched and searched, but am coming up empty. Does anybody make a backing plate spacer, or am I overlooking a simple solution? Thanks, Nick |
12-08-2018, 07:11 PM | #2 |
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Join Date: May 2012
Location: horseheads,ny rust belt
Posts: 2,794
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Re: Disc TO Drum Conversion Help
need way more info please ?
truck ? year ? what axle family ? fill in this and i might be able to help . your question is way to void of specific info .
__________________
77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
12-08-2018, 07:44 PM | #3 |
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Join Date: Dec 2014
Location: Northern California
Posts: 422
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Re: Disc TO Drum Conversion Help
Crap - what a brain fart I had!
The truck is an 85 K2500 with a full float 14 bolt swapped in. The rear is an early 80’s axle. Thanks! |
12-08-2018, 07:50 PM | #4 |
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Join Date: May 2012
Location: horseheads,ny rust belt
Posts: 2,794
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Re: Disc TO Drum Conversion Help
oh k now we get the info you need .
bad part is the pop off drum style is a whole different spindle bearing spacing . hub / spindle is whole different combo from the older setup . so if you truly want pop off drums then you need to get the axle built for it and cut/weld spring perches and shock mounts to fit your older setup . i found this out the hard way years ago with a disk brake swap kit i had all ready to go and the stuff wouldnt fit at all from my older press on drum style i had the rotors loaded on to already with new bearings / races / seals . hope this helps you out . what you going to do with the spicer 5831 ? ? ?
__________________
77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
12-08-2018, 09:07 PM | #5 |
Registered User
Join Date: Dec 2014
Location: Northern California
Posts: 422
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Re: Disc TO Drum Conversion Help
That's kind of what I was afraid of! The rear disks have worked well, but I don't really tow, do a lot of slowing with my gears, and have some 13x3.5 rear drum brakes waiting to go on.
As for the 5831, not sure what to do with it yet. I MIGHT keep it in the truck, but it certainly is not really helping me with my mileage. It is just good for keeping RPMs down. |
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